From 45e00aca28504b27f3ad6b4abf364c3d57f34510 Mon Sep 17 00:00:00 2001
From: wangzhengquan <wangzhengquan85@126.com>
Date: 星期一, 22 二月 2021 14:05:28 +0800
Subject: [PATCH] lock free queue
---
src/socket/shm_socket.cpp | 100 +++++++++++++++++++++++++++++++++++--------------
1 files changed, 71 insertions(+), 29 deletions(-)
diff --git a/src/socket/shm_socket.cpp b/src/socket/shm_socket.cpp
index 0d82be0..7e33cc6 100644
--- a/src/socket/shm_socket.cpp
+++ b/src/socket/shm_socket.cpp
@@ -5,10 +5,12 @@
#include <cassert>
#include "bus_error.h"
#include "sole.h"
+#include "shm_mm.h"
+#include "key_def.h"
static Logger *logger = LoggerFactory::getLogger();
-
+ShmQueueStMap * shmQueueStMap ;
static void print_msg(char *head, shm_packet_t &msg) {
// err_msg(0, "%s: key=%d, type=%d\n", head, msg.key, msg.type);
@@ -101,26 +103,43 @@
if (s != 0)
err_exit(s, "pthread_mutexattr_destroy");
+
+ shmQueueStMap = shm_mm_attach<ShmQueueStMap>(SHM_QUEUE_ST_KEY);
+
return sockt;
}
-int shm_socket_close(shm_socket_t *sockt) {
+static int _shm_socket_close_(shm_socket_t *sockt) {
int rv;
logger->debug("shm_socket_close\n");
- if(sockt->queue != NULL) {
- delete sockt->queue;
- sockt->queue = NULL;
+ // if(sockt->queue != NULL) {
+ // delete sockt->queue;
+ // sockt->queue = NULL;
+ // }
+
+ // hashtable_remove(hashtable, mkey);
+
+
+ if(sockt->key != 0) {
+ auto it = shmQueueStMap->find(sockt->key);
+ if(it != shmQueueStMap->end()) {
+ it->second.status = SHM_QUEUE_ST_CLOSED;
+ it->second.closeTime = time(NULL);
+ }
}
- rv = pthread_mutex_destroy(&(sockt->mutex) );
- if(rv != 0) {
- err_exit(rv, "shm_socket_close");
- }
+
+ pthread_mutex_destroy(&(sockt->mutex) );
free(sockt);
return 0;
+}
+
+
+int shm_socket_close(shm_socket_t *sockt) {
+ return _shm_socket_close_(sockt);
}
@@ -275,7 +294,7 @@
return;
logger->debug("%d destroy tmp socket\n", pthread_self());
- shm_socket_close((shm_socket_t *)tmp_socket);
+ _shm_socket_close_((shm_socket_t *)tmp_socket);
rv = pthread_setspecific(_perthread_socket_key_, NULL);
if ( rv != 0) {
logger->error(rv, "shm_sendandrecv : pthread_setspecific");
@@ -303,7 +322,7 @@
const int send_size, const int key, void **recv_buf,
int *recv_size, const struct timespec *timeout, int flags) {
- int rv, tryn = 3;
+ int rv, tryn = 6;
shm_packet_t sendpak;
shm_packet_t recvpak;
std::map<std::string, shm_packet_t>::iterator recvbufIter;
@@ -512,7 +531,7 @@
return EBUS_RECVFROM_WRONG_END;
}
- shm_socket_close(tmp_socket);
+ _shm_socket_close_(tmp_socket);
return rv;
}
@@ -523,6 +542,8 @@
const int key, const struct timespec *timeout, const int flag) {
int rv;
+ shm_queue_status_t stRecord;
+ LockFreeQueue<shm_packet_t> *remoteQueue;
hashtable_t *hashtable = mm_get_hashtable();
if( sockt->queue != NULL)
@@ -545,6 +566,12 @@
logger->error("%s. key = %d", bus_strerror(EBUS_KEY_INUSED), sockt->key);
return EBUS_KEY_INUSED;
}
+
+ // 鏍囪key瀵瑰簲鐨勭姸鎬� 锛屼负opened
+ stRecord.status = SHM_QUEUE_ST_OPENED;
+ stRecord.createTime = time(NULL);
+ shmQueueStMap->insert({sockt->key, stRecord});
+
}
if ((rv = pthread_mutex_unlock(&(sockt->mutex))) != 0)
@@ -559,24 +586,34 @@
return EBUS_SENDTO_SELF;
}
- LockFreeQueue<shm_packet_t> *remoteQueue;
- if ((remoteQueue = shm_socket_attach_queue(key)) == NULL) {
- bus_errno = EBUS_CLOSED;
- logger->error("sendto key %d failed, %s", key, bus_strerror(bus_errno));
- return EBUS_CLOSED;
+ // 妫�鏌ey鏍囪鐨勭姸鎬�
+ auto it = shmQueueStMap->find(key);
+ if(it != shmQueueStMap->end()) {
+ if(it->second.status == SHM_QUEUE_ST_CLOSED) {
+ // key瀵瑰簲鐨勭姸鎬佹槸鍏抽棴鐨�
+ goto ERR_CLOSED;
+ }
}
-
+ remoteQueue = shm_socket_attach_queue(key);
+
+ if (remoteQueue == NULL ) {
+ goto ERR_CLOSED;
+ }
rv = remoteQueue->push(*sendpak, timeout, flag);
-
return rv;
+
+ERR_CLOSED:
+ logger->error("sendto key %d failed, %s", key, bus_strerror(EBUS_CLOSED));
+ return EBUS_CLOSED;
+
}
// 鐭繛鎺ユ柟寮忔帴鍙�
static int shm_recvpakfrom(shm_socket_t *sockt, shm_packet_t *_recvpak , const struct timespec *timeout, int flag) {
int rv;
-
+ shm_queue_status_t stRecord;
hashtable_t *hashtable = mm_get_hashtable();
shm_packet_t recvpak;
@@ -601,6 +638,10 @@
return EBUS_KEY_INUSED;
}
+ // 鏍囪key瀵瑰簲鐨勭姸鎬� 锛屼负opened
+ stRecord.status = SHM_QUEUE_ST_OPENED;
+ stRecord.createTime = time(NULL);
+ shmQueueStMap->insert({sockt->key, stRecord});
if ((rv = pthread_mutex_unlock(&(sockt->mutex))) != 0)
err_exit(rv, "shm_recvfrom : pthread_mutex_unlock");
@@ -609,8 +650,15 @@
LABEL_POP:
- //
- // printf("%p start recv.....\n", sockt);
+ // 妫�鏌ey鏍囪鐨勭姸鎬�
+ // auto shmQueueMapIter = shmQueueStMap->find(sockt->key);
+ // if(shmQueueMapIter != shmQueueStMap->end()) {
+ // stRecord = shmQueueMapIter->second;
+ // if(stRecord.status = SHM_QUEUE_ST_CLOSED) {
+ // // key瀵瑰簲鐨勭姸鎬佹槸鍏抽棴鐨�
+ // goto ERR_CLOSED;
+ // }
+ // }
rv = sockt->queue->pop(recvpak, timeout, flag);
if(rv != 0)
@@ -623,10 +671,4 @@
*_recvpak = recvpak;
return rv;
}
-// int shm_sendandrecv(shm_socket_t *sockt, const void *send_buf,
-// const int send_size, const int send_key, void **recv_buf,
-// int *recv_size, const struct timespec *timeout, int flags) {
-
-// struct timespec tm = {10, 0};
-// return _shm_sendandrecv_thread_local(sockt, send_buf, send_size, send_key,recv_buf, recv_size, &tm, flags);
-// }
+
--
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